gno/usr.bin/colcrt/tests/colcrt.out.a4

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COLCRT (1) Commands and Applications COLCRT (1)
NAME
colcrt - filter nroff output for CRT previewing
SYNOPSIS
colcrt [ - ] [ -2 ] [ file ... ]
colcrt -V
DESCRIPTION
Colcrt provides virtual half-line and reverse line feed
sequences for terminals without such capability, and on which
overstriking is destructive. Half-line characters and
underlining (changed to dashing `-') are placed on new lines in
between the normal output lines.
OPTIONS
-
Suppress all underlining. This option is especially
useful for previewing allboxed tables from tbl(1).
-2
Causes all half-lines to be printed, effectively double
spacing the output. Normally, a minimal space output
format is used which will suppress empty lines. The
program never suppresses two consecutive empty lines,
however. The -2 option is useful for sending output to
the line printer when the output contains superscripts
and subscripts which would otherwise be invisible.
-V
Prints version information and exits.
EXAMPLES
A typical use of colcrt would be
tbl exum2.n | nroff -ms | colcrt - | more
BUGS
Should fold underlines onto blanks even with the - option so
that a true underline character would show.
Can't back up more than 102 lines.
General overstriking is lost; as a special case | overstruck
with - or underline becomes +.
Lines are trimmed to 132 characters.
Some provision should be made for processing superscripts and
subscripts in documents which are already double-spaced.
GNO January 22, 1998 Page 1
COLCRT (1) Commands and Applications COLCRT (1)
HISTORY
The colcrt command appeared in 3.0BSD.
ATTRIBUTIONS
This command was ported from FreeBSD source code for
distribution with GNO/ME 2.0.6.
This program contains material from the ORCA/C Run-Time
Libraries, copyright 1987-1998 by Byte Works, Inc. Used with
permission.
SEE ALSO
col(1), more(1), nroff(1), troff(1), ul(1)
GNO January 22, 1998 Page 2